发明名称 |
Apparatus and methods of running casing in a dual gradient system |
摘要 |
<p>A method of running casing in a dual gradient system includes lowering a casing into a low density fluid region and allowing the low density fluid to enter the casing; releasing a plug into the casing; supplying a high density fluid behind the plug; and lowering the casing into a high density fluid region until target depth is reached.</p> |
申请公布号 |
AU2014216312(A1) |
申请公布日期 |
2015.08.20 |
申请号 |
AU20140216312 |
申请日期 |
2014.02.12 |
申请人 |
WEATHERFORD TECHNOLOGY HOLDINGS LLC. |
发明人 |
BUDDE, MARCEL;LIRETTE, BRENT J.;LOGIUDICE, MICHAEL |
分类号 |
E21B33/16;E21B21/00;E21B21/08;E21B43/10 |
主分类号 |
E21B33/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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